• Title/Summary/Keyword: risk impact

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A Study on the development of a heavy rainfall risk impact evaluation matrix (호우위험영향평가 매트릭스 개발에 관한 연구)

  • Jung, Seung Kwon;Kim, Byung Sik
    • Journal of Korea Water Resources Association
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    • v.52 no.2
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    • pp.125-132
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    • 2019
  • In this study, we developed a heavy rainfall risk impact matrix, which can be used to evaluate the influence of heavy rainfall risk, and propose a method to evaluate the impact of heavy rainfall risk. We evaluated the heavy rainfall risk impact for each receptor (Residential, Transport, Utility) on Sadang-dong using the heavy rainfall event on July 27, 2011. For this purpose, the potential risk impact was calculated by combining the impact level and the rainfall depth based on the grid. Heavy Rainfall Risk Impact was calculated by combining with Likelihood to predict the heavy rainfall impact, and the degree of heavy rainfall in the Sadang-dong area was analyzed and presented based on grid.

A Developmental Methodology of Environmental Impact Assessment: Application of Health Risk Assessment (환경영향평가에 있어서 건강위해성평가 기법의 활용방안에 관한 연구)

  • Koo, J.K.;Chung, Y.
    • Journal of Environmental Impact Assessment
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    • v.1 no.1
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    • pp.51-59
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    • 1992
  • Environmental Impact Assessment(EIA) is defined as an activity designed to identify and predict the impact on the environment. In the process of an EIA, the quantitative evaluation is generally performed for the air and water quality which have the national environmental quality standards. But the predicted values for the air and water quality are simply compared to the environmental standards. At present, the EIA process of Korea has no consideration for the possible human health risk resulting from the development projects. Environmental Health Impact Assessment(EHIA) is an applied methodology of EIA to estimate the acceptable health risk caused by a specified level of environmental pollutants. Estimating the excessive lifetime risk that is a possibility of dying of a certain disease by environmental contaminants, is useful as an evaluation technique of EHIA. It is recommanded the decision-makers to make efficient use of EHIA not only the development projects but also legislative proposals, policies and programmes in future.

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Impact of Perceived Risk on Purchasing Behavioral Intention of Internet shopping Mall Shoppers (위험지각이 인터넷 패션 쇼핑몰 이용 소비자의 구매행동의도에 미치는 영향)

  • Ku, Yang-Suk;Lee, Seung-Min
    • Fashion & Textile Research Journal
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    • v.4 no.3
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    • pp.235-242
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    • 2002
  • The purpose of this study was to investigate the types of perceived risk of Internet shopping and the impact of perceived risk on purchasing behavioral intention of Internet shopping mall shoppers. A self-administrated questionnaire was e-mailed to INR research (www.inr.co.kr) panel who had purchasing experience of fashion product through Internet shopping mall. The perceived risk was reduced when the innovativeness increased and purchasing experience in Internet shopping mall increased. The financial risk had an effect on purchasing intention, and social/psychological risk had impact on revisiting intention and word-of-mouth intention negatively. The performance risk perception had significantly negative influence on word-of-mouth intention. Internet using time per week, purchasing experience and Internet innovativeness were positive impact on purchasing behavioral intention of Internet fashion product.

The Impact of Ownership Structure on Credit Risk of Commercial Banks: An Empirical Study in Vietnam

  • PHAM, Thi Bich Duyen;PHAM, Thi Kieu Khanh
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.7
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    • pp.195-201
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    • 2021
  • This study aims to assess the impact of ownership structure of commercial banks on bank credit risk in Vietnam. The authors used the unbalanced table data of 28 commercial banks in the period from 2004 to 2020 with 439 observations. The ratio of loan loss provisioning to loans (CR) is selected as a dependent variable representing credit risk at commercial banks. The regression methods used include: least squares method (OLS), fixed-effect model (FEM), random-effect model (REM) and general least squares method (GLS). The results reveal that, with interaction variable between the ratio of equity to total assets and foreign ownership, the national GDP annual growth rate is negatively associated with credit risk. With the ratio of equity to total assets, the interaction variable between equity and state ownership, and bank size have a significant positive impact on credit risk. In addition, inflation has negligible impact on the credit risk of commercial banks in Vietnam over the research period. The findings of this study suggest that, if foreign-owned banks increase equity capital, there will be a stronger impact on reducing credit risk than other banks. On the other hand, when state-owned commercial banks in Vietnam increase equity, they will have higher credit risk.

How Does Internal Control Affect Bank Credit Risk in Vietnam? A Bayesian Analysis

  • PHAM, Hai Nam
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.1
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    • pp.873-880
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    • 2021
  • The purpose of this study is to investigate the impact of internal control on credit risk of joint stock commercial banks in Vietnam from 2007 to 2018. Furthermore, we specify bank-specific characteristics and macroeconomic conditions, and analyze how these factors affect credit risk of banks: the number of board members, the number of board members with banking or finance background as ratio of total board members, loans to total assets ratio, loans to deposit ratio, the number of days between the year-end and the publication of the financial statements, and the use of top four auditing firms proxy for five elements of internal control. By using the dataset of 30 Vietnamese joint stock commercial banks and Bayesian linear regression via Random-walk Metropolis Hastings algorithm, the results of this study show that five elements of internal control have a impact on bank credit risk, namely, control environment, risk assessment, control activities, information and communication, and monitoring activities. For factors of banks' characteristics, bank size and financial leverage have a negative impact on banks' credit risk, and bank age has a positive effect. For macroeconomic factors, inflation has a positive impact and economic growth has a negative impact on banks' credit risk.

Application of the Risk-Based Analysis to EIA (환경영향평가에 있어 위해성분석 기법의 도입)

  • Chung, Yong
    • Journal of Environmental Impact Assessment
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    • v.4 no.3
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    • pp.1-8
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    • 1995
  • In generally speaking, the purpose of Environmental Impact Assessment(EIA) is to give the environment its due place in the decision-making process by clearly ealuating the environmental consequence of a proposed activity before action is taken. The introduction of conventional EIA is to be seen as an end product of a very long evolutionary process, starting with rudimentary but evolving pollution control measures for air, water, noise, land and chemicals, each governed by separate, and separately administered pieces of legislation. In EIA process, the measures of status, scoping, proposed mitigation and communication have not been very quantitative in their significancy. Of course, the determinations have uncertainity in the implications for significant impacts. To improve the determination of significant impacts, some more comprehensive methodologies of EIA has been proposed with the concepts of risk analysis in the proposed projects. The concepts of risk analysis has been introduced to the expression of human health impairment due to environmental pollutants since the early 1980's. The risk analysis being meant by the statistical significance of impact has a process quantitatively considering uncertainities and importances of ecological systems and human health as well. The process of risk analysis shows assessment, doseresponse in toxicity, exposure assessment and risk characterization. With the risk assessment, it could be suggested for the proper measurements against their anticipated risk in the EIA. This paper deals the priciples developing process and application of the risk-based analysis in EIA.

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Risk-based Security Impact Evaluation of Bridges for Terrorism (Security and Risk를 기반으로 한 교량구조물의 재난 안전성 평가)

  • Kang, Sang-Hyeok;Choi, Hyun-Ho;Seo, Jong-Won
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.629-632
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    • 2008
  • Risk-based security impact evaluation may be affected by various factors according to numerous combinations of explosive devices, cutting devices, impact vehicles, and specific attack location to consider. Presently, in planning and design phases, designers are still often uncertain of their responsibility, lack of information and training of security. Therefore, designers are still failing to exploit the potential to reduce threats on site. In this study, the concept of security impact assessment is introduced in order to derive the performing design for safety in design phase. For this purpose, a framework for security impact assessment model using risk-based approach for bridge structures is suggested. The suggested model includes of information survey, classification of terror threats, and quantitative estimation of severity and occurrence.

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A Case Study on Health Impact Assessment from Petroleum Refinery Plant Operation - Human Risk Assessment due to Chemicals Inhalation - (석유정제시설 운영에 대한 건강영향평가 사례 연구 - 화학물질 흡입에 따른 인체 위해도 평가 -)

  • Myung, Nho-Il;Lee, Young-Soo;Shin, Dae-Yewn
    • Journal of Environmental Impact Assessment
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    • v.19 no.3
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    • pp.259-270
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    • 2010
  • We conducted human risk assessment for exposure to inhalation of chemical substances emitted from the storage tanks of petroleum refineries. To assess human risk, this study calculated chemical emissions from the external floating roofs on storage tank at petroleum refineries, as well as concentrations thereof in the ambient air using the K-SCREEN model, and then determined risk in accordance with the Reference Concentration (RfC) values and Inhalation Unit Risk criteria developed by the US Environmental Protection Agency. The results indicated that non-carcinogenic chemicals have a hazard quotient of less than 1, meaning they have an insignificant effect on human health for residential areas near the storage tanks. Among the known carcinogens, the hazard risk for benzene slightly exceeded $10^{-6}$, indicating the need for corrective reduction measures. The methodology for health impact assessment devised herein provides findings useful in decision making for policy makers and the general public with respect to construction of industrial complexes. However, the methodology proposed herein does have limitations, including discrepancy in results induced by use of U.S. data (due to the lack of usable domestic data). More systematic studies from related researchers will be needed to address these issues and produce more reliable outcomes.

Study on the Impact of the Private Credit Excess on the Credit Risk under the Massive Capital Inflows

  • Kim, Jong-Hee
    • East Asian Economic Review
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    • v.20 no.3
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    • pp.391-423
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    • 2016
  • By examining the relationship between private credit growth and the possibility of credit risk while focusing on international capital in 21 countries over the period 2000:1Q-2015:2Q, this paper shows that the impact of private credit growth on credit risk is apparent under the high ratio of capital inflows, and its impact on credit risk in the seven Asian countries is even stronger. And the possibility of credit risk caused by private credit is mainly coming from portfolio inflows rather than direct inflows. Finally, portfolio inflows strengthen the positive relationship between credit excess and credit risk in Asian countries, and this trend is seen more in these after the global financial crisis. Taken together, the stronger positive relationship between credit excess and credit risk can be strengthen under the massive portfolio inflows in particular in the seven Asian countries such as Hong Kong, India, Indonesia, Korea, Malaysia, Singapore, and Thailand.

A Case Study of Health Impact Assessment on Incinerator Construction Project - Human Risk Assessment due to Inhalation Exposure to Heavy Metals - (소각로 건설사업에 대한 건강영향평가 사례연구 - 중금속 흡입에 따른 인체 위해성 평가 -)

  • Kim, Youngha;Choi, Sangki;Lee, Youngsoo
    • Journal of Environmental Impact Assessment
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    • v.18 no.1
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    • pp.11-19
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    • 2009
  • We conducted human risk assessment due to inhalation exposure to heavy metals emitted from incinerator. The process of health impact assessment(HIA) on incinerator is as follows: The first step is to presume and calculate the amount of heavy metals emitted using emission factor. The second step is to conduct an exposure assessment using the K-SCREEN model which is used for predicting the concentration in a conservative method. The last step is to carry out a risk assessment on carcinogenic and non-carcinogenic substances. This study revealed that rank of carcinogenic human risk was $Cr^{+6}$ > As > Ni > Cd, and values of human risk assessment on carcinogenic and non-carcinogenic substances is lower than the US criteria for risk assessment except $Cr^{+6}$. It is expected that the technique of HIA, especially human risk assessment on heavy metals, would be applied to the incinerator construction project. In addition, more systematic studies are needed to overcome some weak points and limits found in this study.